How to Select Superinstructions for Ruby

Zakirov, Salikh; Chiba, Shigeru; Shibayama, Etsuya

doi:10.2197/ipsjtrans.3.54

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2019

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“…We focused on optimizations to reduce the cost of type-based dispatch, which is another difference from previous work. Regarding optimizations for specific languages, we note that Zakirov et al [10] proposed superinstructions for the Ruby VM to eliminate boxing of floating-point numbers.…”

Section: Related Workmentioning

confidence: 99%

Design and Implementation of Superinstructions for JavaScript Virtual Machine Generation System for Embedded Systems eJSTK

Nonaka

Ugawa

2019

Journal of Information Processing

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Embedded systems generally have a small amount of memory and slow CPUs. Therefore it is desirable to increase the speed of JavaScript virtual machines (VMs) without increasing memory footprint. In this research, we introduce superinstructions, combinations of constant load instructions and arithmetic, logical, and relational (ALR) instructions to increase execution speed. Introducing superinstructions increases the size of a VM. Thus, we designed superinstructions so that they would share their implementation code with the ALR instructions, from which they are made. Furthermore, we simplified their type-based dispatching code through specialization to the datatypes of their constant operands. We developed a VM generator that creates VMs that have superinstructions in accordance with this approach and a compiler that compiles JavaScript programs using them.

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Section: Related Workmentioning

confidence: 99%